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the body's drumbeat, broadcasting your aliveness through fingertips before your brain agrees to it

first countclocked by an ancient Chinese doctor 3,500 years ago

laser cousinshortest light pulses last attoseconds, one quintillionth of a second

hidden tella wrist pulse reveals lies better than words

resting lowelite cyclists idle near 30 beats per minute

food echolentils and beans share the name, from Latin puls